. >> also japan mobilize the missile defense system after defiant move by north korea. i have details on that next. >> like something out of a movie what caused this massive explosion in west virginia? >> also tonight. truck driver gets the blame for a fatal amtrak accident. if he had acted just 2 seconds faster it would not have happened. stay for over 60,000 california foster children, the holidays can be an especially difficult time. everything's different now. sometimes i feel all alone. christmas used to be my favorite. i just don't expect anything. what if santa can't find me? to help, sleep train is holding a secret santa toy drive. bring your gift to any sleep train, and help keep the spirit of the holidays alive. not everyone can be a foster parent. but anyone can help a foster child. >> good evening again. we begin this half hour with news about north korea. yang fired long range rocket defying warnings from the united states and the quantityed nations. now you are looking at satellite pictures of the rocket launching facility. the launch demonstrates how nort